dbSNP rs758360579: MZT2B:p.Pro15Ala (chr2-130182325-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_025029.5(MZT2B):c.43C>G(p.Pro15Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000394 in 1,520,942 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000037 ( 0 hom. )

Consequence

MZT2B
NM_025029.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.62

Variant links:

Genes affected

MZT2B (HGNC:25886): (mitotic spindle organizing protein 2B) Located in cytosol; microtubule cytoskeleton; and nucleoplasm. Part of gamma-tubulin large complex. [provided by Alliance of Genome Resources, Apr 2022]

MZT2B links:

SMPD4 (HGNC:32949): (sphingomyelin phosphodiesterase 4) The protein encoded by this gene is a sphingomyelinase that catalyzes the hydrolysis of membrane sphingomyelin to form phosphorylcholine and ceramide. This gene is activated by DNA damage, cellular stress, and tumor necrosis factor, but it is downregulated by wild-type p53. The encoded protein localizes to the endoplasmic reticulum and Golgi network. [provided by RefSeq, Mar 2017]

SMPD4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03399697).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MZT2B	NM_025029.5 link	c.43C>G	p.Pro15Ala	missense_variant	Exon 1 of 3	ENST00000281871.11	NP_079305.2	Q6NZ67

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MZT2B	ENST00000281871.11 link	c.43C>G	p.Pro15Ala	missense_variant	Exon 1 of 3	1	NM_025029.5	ENSP00000281871.7		Q6NZ67

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151994

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000853

AC:

AN:

117280

Hom.:

AF XY:

0.00

AC XY:

AN XY:

64758

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000473

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000365

AC:

AN:

1368948

Hom.:

Cov.:

AF XY:

0.00000148

AC XY:

AN XY:

675448

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000870

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000129

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.32e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151994

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74252

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.0000150

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.047

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.59

CADD

Benign

7.3

DANN

Benign

0.78

DEOGEN2

Benign

0.0036

T;.;.

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.0041

LIST_S2

Benign

0.47

T;T;T

M_CAP

Benign

0.012

MetaRNN

Benign

0.034

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.41

N;.;.

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

0.12

N;N;N

REVEL

Benign

0.011

Sift

Benign

0.83

T;T;T

Sift4G

Benign

0.90

T;T;T

Polyphen

0.0

B;.;.

Vest4

0.15

MutPred

0.23

Loss of catalytic residue at P15 (P = 0.0069);Loss of catalytic residue at P15 (P = 0.0069);.;

MVP

0.043

MPC

0.40

ClinPred

0.036

GERP RS

-3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.2

Varity_R

0.013

gMVP

0.11

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over